Fertilizer recommendations can vary widely across state lines, which is a management challenge for producers working in multiple states.
To meet that need, South Dakota State University Extension and project partners are proud to announce the nationwide release of the Fertilizer Recommendation Support Tool (FRST), a decision aid that provides an unbiased, science-based interpretation of soil phosphorus and potassium values for crop fertilization.
Important nutrients for soil health and crop production, phosphorous and potassium are key in commonly applied fertilizers. The new web-based FRST tool provides critical phosphorus and potassium soil test values to indicate where applying phosphorus or potassium fertilizers likely wouldn’t improve crop yields.
Using data from 40 states in the U.S. and Puerto Rico, the tool can potentially save crop producers millions of dollars annually in fertilizer costs while reducing excess nutrient losses to the environment.
For more information about FRST (FRST v1.0), visit https://soiltestfrst.org and click on “Tool” in the navigation menu at the top of the page.
SDSU Extension
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